This document defines the greenhouse effect and discusses its natural and human-enhanced causes and impacts. It begins by defining the greenhouse effect as the warming of the Earth's surface due to gases that trap heat in the atmosphere, similar to the function of a greenhouse. It then discusses the greenhouse effect's natural role in warming the planet and its human-enhanced impacts from increased greenhouse gases from activities like burning fossil fuels and deforestation. These human impacts can lead to issues like climate change, respiratory illnesses from increased air pollution, and disruptions to food supply and extreme weather. The top greenhouse gases and largest emitting countries are also identified.

1. HAFIZ
MUHAMM
AD
WASEEM
LAHORE
PAKISTA
N

2. UNIVESITY OF EDUCATION
LAHORE PAKISTAN

3. GENERAL DEFINITION
Process that WARMS the Earth’s surface
Term taken from Green House
 A room with transparent walls

4. HISTORY
JohnTyndall
Irish physicist
In 1859, he published a series of studies
on the way greenhouse gases including
carbon dioxide trapped heat in the
Earth's atmosphere

5. GREEN HOUSE EFFECT
NATURAL
HUMAN MADE/ENHANCED

6. NATURAL
 natural process
 exchange of incoming and outgoing
radiations that warms the Earth

10. HUMAN MADE/ENHANCED
 Earth's atmosphere becomes thick
 Gases and substances which trap the sun's
radiation
 Earth warmer
 Global warming

12. NATURAL VS ENHANCED

14. HUMAN IMPACT
 overpopulation
 pollution, burning fossil fuels
 deforestation
 Climate change
soil erosion
 poor air quality
 undrinkable water

15. GREEN HOUSE GASES AND THEIR
EFFECTS
Climate change by trapping heat
contribute to respiratory disease from
smog and air pollution
Extreme weather
 Food supply disruptions
 Increased wildfires

16. ABUNDANT GREENHOUSE GASES
 Water vapor (H. 2O)
 Carbon dioxide (CO. ...
 Methane (CH. ...
 Nitrous oxide (N. 2O)
 Ozone (O. ...
 Chlorofluorocarbons (CFCs)
 Hydrofluorocarbons (includes HCFCs and
HFCs)

17. Countries with most CO2
EMISSION
Rank Country CO2 emission
s (total)
1 China 9056.8MT
2 United States 4833.1MT
3 India 2076.8MT
4
Russian
Federation
1438.6MT

18. MOST POTENT GAS
 Water vapor is the most potent of
the greenhouse gases in Earth's atmosphere
 it is sort of a unique player among
the greenhouse gases

19. MAJOR POLLUTERS
Meat and dairy companies
These have surpassed even the OIL
Industries……….

20. GREENHOUSE GASES AND GLOBAL
WARMING
 Carbon dioxide (CO2) and
other greenhouse gases act like a blanket
absorbing IR radiation and preventing it
from escaping into outer space.
 The net effect is the gradual heating of
Earth's atmosphere and surface, a process
known as global warming.

21. RESPONSE/PREVENTION
 Reduce, Reuse, Recycle. ...
 Use Less Heat and Air Conditioning. ...
 ReplaceYour Light Bulbs. ...
 Drive Less and Drive Smart. ...
 Buy Energy-Efficient Products. ...
 Use Less Hot Water. ...
 Use the "Off" Switch. ...
 Plant aTree.

25. REFERENCES
 Jacob, Daniel J. (1999). "7. The Greenhouse
Effect". Introduction to Atmospheric Chemistry.
Princeton University Press. ISBN 978-1400841547.
 Mitchell, John F. B. (1989). "The "Greenhouse"
effect and Climate Change" (PDF). Reviews of
Geophysics. 27(1): 115–
139. Bibcode:1989RvGeo..27..115M. CiteSeerX 10.
1.1.459.471. doi:10.1029/RG027i001p00115.
Retrieved 2008-03-23.
 "Enhanced greenhouse effect — Glossary". Nova.
Australian Academy of Scihuman impact on the

26. THANKYOU ALL…..